Blonde party girl says she wishes she could take back her alleged tryst with Tiger

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A blonde party girl who is the latest self-described mistress to speak out about an alleged tryst with Tiger Woods apologized to the married golfer's wife today and called the fling a mistake.

"I am deeply sorry, I wish I could take it back," Cori Rist told the "Today" show.

Tiger Woods' Life and Times

In an interview on the "Today" show Monday, the 31-year-old club-going mother of one said the world's No. 1 golfer led her on about a possible future together and confessed to her that his five-year marriage to model Elin Nordegren was crumbling.

"[He said] his marriage was on the rocks and there was a baby on the way, and he'd have to stick it out for now," Tiger reportedly told Rist.

The fresh allegations came a day after the pro athlete was dropped by his first major sponsor, Accenture, who ended their six-year relationship with the pitchman in the wake of the burgeoning sex scandal.

Rist, claiming she was overcome by guilt, said she decided to end the six-month relationship that began when she was introduced to the famed athlete at a nightclub in 2006. She said she believed at the time she was on the only other woman and that she was "special."

"I can't imagine the pain that she's feeling right now," Rist said about Tiger's wife, Elin. "I was being selfish. ... I was caught up in it ... I didn't think about her at that time."

She said she chose to speak out to deny rumors she was a paid escort and to set an example for her young son.

"I'm very ashamed of this, and I have to set an example for my son," she said through tears. "I made a mistake and these are the consequences."

The 33-year-old golfer admitted infidelity after a bevy of blondes and brunettes came forward alleging affairs with the father of two in the wake of his Nov. 27 car accident. He also said he is taking a leave of absence from golf.

"I am deeply aware of the disappointment and hut that my infidelity has caused to so many people, most of all my wife and children. I want to say again to everyone that I am profoundly sorry and that I ask forgiveness," Woods wrote on his website last week.

On Sunday, management consulting firm Accenture became the first big-name sponsor to severe ties with Woods, ending a six-year relationship with the athlete on Sunday.

"After careful consideration and analysis, the company has determined that he is no longer the right representative for its advertising," Accenture said on its website Sunday.